Electric hoist or draft apparatus.



PATENTED JAN. 7, 1908.

P. F. SHEVLIN. ELECTRIC HOIST OR DRAFT APPARATUS.

APPLICATION FILED DEO.21.1906.

2 SHEETS-SHEET 1.

Invqnjof: 6Z/M No. 875,855. PATBNTBD JAN. 7, 1908. P. P. SHEVLIN.

ELECTRIC HOIST OR DRAFT APPARATUS. APPLICATION FILED DEG.21,1906.

2 SHEETSSHEET 2.

K1 Jul-Ia l I I ll/Ill Q W V///////////A III witnesses PATRICK F.SHEVLIN, OF SOUTH BOSTON, MASSACHUSETTS.

ELECTRIC HOIST OR DRAFT APPARATUS.

Specification of Letters Patent.

Patented Jan. 7, 1908.

Application filed December 21. 1906. Serial No. 348,866,

To all whom it may concern:

Be it known that I, PATRICK F. SHEVLIN, a citizen of the United States,residing at South Boston, in the county of Sufiolk and State ofMassachusetts, have invented new and useful Improvements in ElectricHoist or Draft Apparatus, of which the following erate grades, but whena steep grade is is a specification.

ThlS invention relates to an electric hoist or draft apparatusparticularly adapted for assisting teams to ascend or descend steepgrades.

It very often happens that a horse or pair of horses hitched to a wagonis capable of hauling a load along level roads and up modreached thehorses have'a hardstruggle to ascend it. It is a familiar sight undersuch circumstances to see an inhumane driver that end the inventionconsists in an apparatus comprising anelectric motor an drum operativelyconnected thereto, the same being preferably placed at the summit of thehill so that a rope or cable surrounding the drum may be attached to awagon and the horses may be assisted by the motor in hauling a wagon.

Other objects and advantages will appear hereinafter.

Referring to the drawings: Figure 1 is a plan view of my apparatusshowing the base embedded in a sidewalk. Fig. 2 is a perspective view ofthe same located at the summit of a hill and being used to. haul a wagonup the hill. Fig: 3 is an enlar ed section, artly in elevation, taken onine 33 of Fig. 1. a

Like numerals refer to like arts throughout the several views of therawings.

the controller 22. a hinged door 23 is In the drawings, 5 is a hollowbase embedded in a sidewalk 6 adjacent to a curbstone 7. The base 5 isprovided with a cover plate 8 secured thereto in such a manner as to bewater tight. A column 9 extending upwardly from the base 5 has ournaledthereon a drum 10 there being sultable annular ball bearings 11, 11interposed between said column and said drum. The drum 10 is providedwith a cap 12 fast ther'eto, said cap having a squarerecess 13 in whichis located the squared end 14 of a shaft 15. The shaft 15 is journaledat its lower end in a bearing 16 formed on the base 5. A worm gear 17fast to the shaft 15 meshes into a worm 18, said worm being fast to ashaft 19 journaled in suitable bearings formed on the interior of thebase 5.

An electric motor 20 is provided with a shaft 21 which is coupled to theshaft 19. A controller 22 in circuit in the motor 20 is adapted tocontrol said motor so that said motor may be started, stopped, andreversed at will. In order that access may be had to rovided. An arm 24is rotatably mounte on the column 9, said arm being rovided with astrut. 25 pivotally connecte thereto, said strut when in operativeposition as shown in the drawings, being in en agement with a notch 26formed in the cur stone 7. When the apparatus is out of use, the strut25 may be removed from the notch 26 and the arm 24 may then be swung tothe position illustrated in broken lines, Fig. 1.

A rope or cable 27 surrounding the drum 10 and preferably fast theretoat one end passes around a sheave wheel 28 of a block 29, said blockbeing connected by a link 30 to a pivotal pin 31. A hook 32 is fast tothe free end of the ro e 27, said hook .being adapted to be attac ed toa wagon. When it is desired to assist a wagon 33 up the hill.

the hook 32 may be attached to any suitable part of the wagon and themotor 20 may be run in the proper direction to wind the rope 27 onto thedrum 10.

Should a heavily loaded wagon be without brakes and should it be desiredto descend the hill the hook 32 may be attached to the rear end of saidwagon and the motor 20 scribed.

'stitute a positive look so that the motor 20 may be stopped at any timeduring the ascendin'g or descending of the hill and the wagon will beheld against descending the hill by reason of the action of gravity.

It will be evident that the apparatus here: inbefore described iscapable of various modifications within the spirit and scope of theinvention and that the same may be utilized for purposes other than theone herein do.-

the arm 24, the strut 25, and the pulley block 29 may be dispensedwith.. a

Having thus described my invention, what I claim and desire by LettersPatent to secure is:

1. A draft a paratus comprising in its construction a ho ow base, ahollow column extending upwardly from said base, a hollow drumsurrounding said column and journaled on bearings surrounding saidcolumn, a. shaft located within said column, said shaft being connectedat its upper end to said drum and being journaled at its lower end onsaid base, said shaft being of less diameter than the inside diameter ofsaid column, a motor located within said base, and mechanism operativelyconnecting said motor to said shaft.

2. A draft a paratus comprising in its construction a hollow base, ahollow column extending upwardly from said base, a hollow drumsurroundingsaid column and journaled on bearings surrounding saidcolumn, a shaft located within said column, said shaft being connectedat its upper end to said drum and being journaled at its lower end onsaid base, said shaft being of less diameter than the inside diameter ofsaid column, a wormgear fast to said shaft, a worm meshing into saidWorm gear, and a motor located within said base 0 eratively connected tosaid worm. 3. draft a paratus comprising in its construction a ho owbase, a hollow column extending upwardly from said base, a hollow drumsurrounding said column and journaledonbearings surrounding said column,a'shaft located within said column, said shaft being connected at itsupper end'to said drum and being journaled at its lower end on saidbase, said shaft being of less diameter than the in side diameter ofsaid column, a motor located within said base, mechanism operativelyconnecting said motor to said shaft, an arm mounted on said column, anda sheave wheel supported on said arm.

4. A draft apparatus comprising in its con- It will be evident;

If the conditions make it desirable,-

struction a hollow base, a hollow column extending upwardly from saidbase, a hollow drum surrounding said column and journaled on bearingssurrounding said column, a shaft located within said column, said shaftbeing connected at its upper end to said drum and being journaled at itslower end on said base,

said shaft being of less diameter than the inside'diameter ofsaidcolumn, a motor located within said base, mechanism operatively connecting said motor to said shaft, an arm rotatably mounted on saidcolumn, a sheave wheel supported on said arm, and means for preventingrotation of said arm on said column. g

5. A draft a paratus comprising in its construction a hollow base, acolumn extending upwardly from said base, a hollow drum surrounding saidcolumn and j ournaled thereon,

a motor located in said base, mechanism operatively connecting saidmotor to said drum, an arm rotatably mounted on said c lumn, a sheavewheel carried by said arm, and means for preventing rotation of said armon said column.

6. A draft a paratus comprising in its construction a hollow base, acolumn extending upwardly fromsaid base, a hollow drum sur= roundingsaid colunm and j ournaled thereon, a motor located in said base,mechanism operatively connecting said motor to said drum, an armrotatably mounted on said col umn, a sheave wheel carried by said arm,and

- a strut pivotally mounted on said arm.

7. A draft a paratus comprising in its construction aho low base, acolumn extending upwardly from said base, a hollow drum surrounding saidcolumn and journaled thereon, a motor located in said base, mechanismoperatively connecting said motor to said I drum, an arm rotatablymounted on said column, a pulley carried by said arm, and a strutpivotally mounted on said arm. 8. A draft a paratus comprising in itsconstruction a ho ow base, a hollow column extending upwardly from saidbase, a hollow drumsurrounding said column and journaled on bearingssurrounding said column, a shaft located within said column, said shaftbeing connected at its upper end to said drum and being journaled at itslower end on said base, said shaft bein of less diameter than the insidediameter 0 said column, amotor located within said base, mechanismoperatively connecting said motor to said shaft, an arm mounted on saidcolumn, a sheave wheel suported on said arm;.and a cable having a 00kfast thereto at one end thereof, the other end of said cable being fastto said drum, said cable passing part way around said sheave wheel.

9. A draft apparatus comprising in its con structionabase, acolumnextendingupwardly In testimony whereof I have hereunto set from saidbase, a drum rotatably mounted 'my hand in presence of two subscribingWii; 10

' on said column, a motor mounted on said nesses.

base, mechanism operatively connecting said motor to said drum, an armrotatably mounted on said column, a sheave wheel carried by Witnesses:said arm, and means for preventing rotation LOUIS A. JONES,

of said arm on said column. I ANNLE J. DAILEY.

PATRICK F SHEVLIN.

